Sight for fire-arms



(No Model.)

J. W. CARVER. SIGHT FOR FIRE ARMS.

No. 404,598. Patented Julie 4, 1889.

llllllll a I UNITED STATES PATE T OFFICE...

JAMES IV. CARVER, OF PAWVLET, VERMONT, ASSIGNOR OF T\VO-Tl-IIRDS TOGIBBONS L. KEIJTY, OF BROOKLYN, NEV YORK.

SIGHT FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Eaten; No. 404,598, dated June 4,1889. Application filed November 24, 1888. Serial No.29l,731. (Nomodel.)

To aZZ whom, it may concern: 1

Be it known that I, JAMES W. CARVER, of

Pawlet, in the county of Rutland and State of Vermont, have invented anImprovement in Sights for Fire-Arms, of which the following is aspecification.

The present invention is an improvement upon and modification of thatwhich is represented in Letters Patent No. 387,282, granted to-me August8, 1888. In my present improvement I provide for adjusting the height ofthe sight with great accuracy, and I also provide for varying the anglebetween the support that carries the sight and the base that is attachedto the gun, so that the sight will occupy a vertical position, even incases where the sight is attached to the inclined portion of thegunstock.

In the drawings, Figure 1 is a vertical section of the sight complete.Fig. 2 is an elevation, and Fig. 3 is a detached view, of theholding-springs.

The base A is adapted to be attached upon the gunstock, and it isprovided with a transverse groove for .the reception of the transverseslide 1, and there is an adjusting screw K, similar to that representedin my aforesaid patent, except that there are micrometer divisions onthe head of the screw, as shown, to facilitate accurate adjustments, andthere are jaws 6 upon the transverse slide I and a central joint-piece5, through which the hinge-pin D passes, so that the sight can be swungupon this hinge-pin and turned down against the gun or brought upvertically, and the sight G, instead of having a removable tube formingthe peep-hole of the sight, the same as in the aforesaid patent, is madein two parts composed of a ring 20, having within it the perforatedseptum 21, the hole of which is sufficiently large to accommodate theadjustment of the sight, as next described.

Behind the septum 21 and within the ring 20 is a slide-plate 22, havingthrough it holes of varying sizes, and this slide-plate can be movedacross behind the septum 21 by means of an adjustingscrew 23 withmicrometer divisions on the head, the screw passing through the ring 20and acting in a nut upon the plate 22, and'thereis upon the plate 22 amark or vertical line above the'center of each opening or hole in suchslide-plate, and upon th e faces of the septum 21 there are divisions,as shown at 24, so that the center of each hole that is brought intoline with the hole in the septum can be adjusted concentric to that holeor slightly 'to one side or the other of the center, according to theposition of the base and the support for the sight upon the gun itself;and I prefer to make use of a spirit-level 26 upon the face of thesight, so

as to indicate when the gun is held so that screw-socket 28 upon thering to screw upon the reduced upper end of the r'od'27, and I provide asecond sight-29, which is made with a screw-socket 30, that screws upona stud projecting at the top of the ring 20. This sight 29 can bescrewed upon the upper end of the rod 27, and the ring 20 and the partscarried by it can either be entirely removed or screwed upon a stud atthe top of the second sight 29. By this construction I am able toprovide two sights of different characters and with difierent-sizedopenings, and these may be made use of, especially in sportingrifles,the one for obtaining the general direction and the other for accuratelyadjusting the direction of the rifle upon the object fired at.

The lower end of the screw-rod 27 is made square or prismatic, to entera correspondingly-shaped hole in the standard 0, and around thisstandard 0 is a tubular nut 32, the lower end of which is cylindrical tofit around the reduced portion of the standard 0, and the nut is free tobe revolved thereon; but there is a screw or pin 33, which enters agroove around the reduced portion of the standard 0, to prevent theparts being separated, and the threaded portion ofthe tubular nut 32fits upon the screw-rod 27, so 9 that by rotating this tubular nut therod 27 is raised or lowered and the sight thereby adjusted vertically.In order to indicate the extent of this vertical adjustment, thescrew-rod 27 is flattened at the front surface thereof,

and there are divisions made thereon, as shown at 34, and around thebottom end of the tubular nut 32 there are division-marks and a centralindex or pointer upon the surface of the standard C, so that amicrometer adjustment can be obtained of the sight, the divisions aroundthe base of the tubular nut being such as to indicate a verticaladjustment, preferably, to the one-thousandth part of an inch.

The surfaces of the joint pieces 6 are grooved horizontally, and thereis upon the standard C a spring 36, having T-shaped projections 37,passinginto the horizontal grooves in the joint-pieces 6, and the bodyof the spring 36 is slotted longitudinally and vertically for thereception of the attaching-screw 38, which passes into the standard 0;and it will be now apparent that by loosening this screw 38 the standard0 can be swung upon its hinged pin D and brought into a verticalposit-ion or into any desired position in relation to the barrel of thefire-arm, and then by tightening this screw 38 the parts will be held inthe position to which they are ad- 'justed. WV hen the sight is not inuse, it can be swung downwardly against the stock of the fire-arm bylifting the spring sufficiently to separate the T-shaped projections 37from the slots or grooves in the joint-pieces 6, and when the sight isturned up into position for use the T ends spring into the grooves inthe j0int-pieces 86 to hold the parts in position.

I claim as my invention 1. The combination, with the sight G, having acircular rim 20, of a screw at the top thereof and a screw-socket 28 atthe bottom of the screw-rod 27, and a support for the same, there beinga screw-thread at the top fitting the socket 28 and the second sight 29,with a screw-socket 3O fitting either the screw on the ring or on thestandard 27, substantially as specified.

2. The standard 0 and base A, hinged together, the screw-rod 27, havinga prismatic lower end and entering a corresponding longitudinal hole inthe standard 0, in combination with the sight supported by the rod 27,the tubular nut 32, surrounding the upper end of the standard 0 andacting upon the screw-threaded exteriorof the rod 27 substantially asspecified.

3. The combination, with the base A, jointpieces 6, and hinge-pin D, ofthe standard 0, through the lower portion of which the hingepin Dpasses, a spring 3t, having T-shaped projections for passing intogrooves in the hinge-pieces 6, and the attaching-screw passing throughthe slot in the spring, whereby the standard can be adjusted and held ina vertical position, substantially as set forth.

4. The combination, with the sight and the screw-rod 27, connectedtherewith, of the standard 0, into which the lower end of the rod 27passes, the tubular nut-32, surrounding the upper end of the standardand having an internal screw-thread receiving the screw-rod 27, therebeing divisions upon the standard 0 and upon the nut 32 and rod 27, forindicating the vertical adjustment of the sight, substantially as setforth.

5. The base A, having a transverse groove, in combination with thetransverse slide I, adjusting-screw K, the standard 0, hinged to thetransverse slide, the tubular nut around the upper end of the standard,the screw-rod Within the tubular nut and a sight attached to thescrew-rod and adjusted vertically by the tubular nut, substantially asset forth.

Signed by me this 9th day of November, 1888.

JAMES \V. CARVER.

